--- xf86-video-sis-0.9.1/src/sis_driver.c	2013-03-10 13:02:25.000000000 +0100
+++ xf86-video-sis-0.9.1/src/sis_driver.c.new	2013-03-10 13:04:24.349309791 +0100
@@ -86,7 +86,6 @@
 #include "fb.h"
 #include "micmap.h"
 #include "mipointer.h"
-#include "mibstore.h"
 #include "edid.h"
 
 #define SIS_NEED_inSISREG
@@ -9637,7 +9636,6 @@
     }
     pSiS->SiSFastVidCopyDone = TRUE;
 
-    miInitializeBackingStore(pScreen);
     xf86SetBackingStore(pScreen);
     xf86SetSilkenMouse(pScreen);